High severity · published Mar 15, 2026
CVE-2026-1947
NEX-Forms – Ultimate Forms Plugin for WordPress <= 9.1.9 - Missing Authorization to Unauthenticated Arbitrary Form Entry Modification via nf_set_entry_update_id
7.5
CVSS
0.3%
EPSS
No
On KEV
Description
The NEX-Forms – Ultimate Forms Plugin for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 9.1.9 via the submit_nex_form() function due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to to overwrite arbitrary form entries via the 'nf_set_entry_update_id' parameter.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NU
NEX-Forms – Ultimate Forms Plugin for WordPress · webaways
through 9.1.9 · source: vendor
Affected product
NU
NEX-Forms – Ultimate Forms Plugin for WordPress
webaways
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1947
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1947
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3470888/nex-forms-express-wp-form-builder
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/b2a8c307-2430-4ea9-afe0-e5e758eabdd1?source=cve
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